Perhaps a plot where Percy has to protect someone else with the Curse of Achilles. He has to use his own experiences with the Curse to keep this person safe. This could lead to him having to make difficult decisions about when to reveal the secret of the Curse and how to train this person to use it properly without becoming too overconfident.
A great plot could involve Percy having to deal with the psychological impact of the Curse. He might start to feel overconfident and make mistakes. Then, his friends have to help him realize that the Curse is both a strength and a potential downfall. For example, he could be lured into a trap by an enemy who plays on his new - found sense of invulnerability.
Well, in this fanfic, perhaps there are unique interpretations of the Curse of Achilles. It could be that Percy discovers new aspects of the curse that weren't in the original story. For example, it might have some sort of connection to his demigod powers in a way that makes him even more special. Also, the fanfic might explore how Percy deals with the knowledge that he has this powerful and potentially dangerous curse.
Well, perhaps in the fanfic, the curse is not what it seems. It could be a ruse by an even more powerful entity. Percy, with his wits and the help of his friends, discovers this truth. He then has to figure out how to expose the real culprit and free Calypso. It might involve delving into some long - forgotten prophecies or seeking help from unlikely allies.
In the fanfiction of the Curse of Achilles in Percy Jackson, many authors like to play with the idea of Percy's vulnerability. Even though he has the curse which makes him almost invincible, there are always ways around it that the fanfic writers come up with. This could be related to his emotional state or some hidden loopholes in the magic of the curse.
It could be an old enemy of the gods who sees Percy as a threat because of the Curse of Achilles. Maybe a Titan who escaped from Tartarus and wants to use Percy's power for their own gain. If they can control Percy, they could have a powerful weapon against the gods.
One interesting plot idea could be exploring the untold stories of the minor characters in the 'Titan's Curse'. For example, what the satyrs were up to when they weren't with Percy and his friends.
Another theme is identity. With the curse, Percy is somewhat changed. He's no longer just the regular demigod. Fanfiction may delve into how he reconciles this new, more powerful self with his old identity. For instance, he might struggle with the idea that he's now a 'super' demigod while still wanting to be seen as the same Percy by his friends. This can lead to a lot of internal conflict within the character in the fanfiction.
In a fanfic, perhaps Percy and his friends accidentally stumble upon Medusa's lair while on a quest. But instead of immediately attacking, Medusa offers them a deal. She says she will give them a valuable clue to complete their quest if they help her get revenge on one of the minor gods who wronged her in the past. Percy and his friends then have to decide whether to trust Medusa or not.
Another plot could involve Percy's friends getting accidentally transported to a different realm in the Percy Jackson universe. They have to rely on their friendship and the skills they've learned from Percy to survive and find their way back. For example, they might end up in the Underworld and have to navigate past various challenges without Percy at first.
One idea could be a mortal accidentally stumbling into Camp Half - Blood and having to adapt quickly to the world of demigods. Maybe they have some hidden power that only reveals itself in this new environment.
One idea could be to create a new quest within the game world. For example, Percy and his friends have to retrieve a powerful artifact that was stolen by a new type of monster. This could involve exploring new areas of the game, like a hidden underwater city that has never been discovered before. Another plot could be a tournament in the game where demigods from different cabins compete against each other in various challenges. This would show off their different skills and powers. A third idea is that there's a glitch in the game that's causing real - world problems in the Percy Jackson universe, and they have to figure out how to fix it before it's too late.